1 Department of Mathematics and Statistics, Université de Moncton, Moncton, Canada. 2 The Applied Multivariate Research Group, Université de Moncton, Moncton, Canada. 3 Department of Mathematics and ...
So, a friend of mine was bored one day and came up with this problem on his own (it related closely to some personal circumstances of his own). It intrigued me, but I have not been able to solve it.